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Criminal conspiracy

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In criminal law, a conspiracy is a specific type of agreement. It occurs when two or more people agree to commit a crime at a future time. This legal concept is important because it allows the law to address the planning stage of a crime. In many legal systems, the plan itself is considered the crime. This is a key distinction from an "attempt." An attempt requires a person to take a step that is close to finishing the crime. In a conspiracy, the agreement is the central act.

The mechanism of a conspiracy relies on the agreement between participants. There is no limit to how many people can join a conspiracy. Once the agreement is made, the parties often face joint liability. This means they can be held responsible together for the group's actions. A person can even join a plot after it has already started and still incur liability. The law views the act of conspiring as a continuing one.

Different legal systems handle the requirements for a conspiracy in various ways. Some countries require an "overt act" to make the conspiracy an offense. An overt act is a real step taken to help carry out the agreement. Without this step, the plan might not be a crime in those specific places. Additionally, if a person decides to repent, it may not remove their legal liability. However, changing one's mind might reduce the sentence given by a judge.

The history of conspiracy law shows how much it has changed. Originally, the legal expert Edward Coke described it as a remedy against false accusations. It was used when people agreed to maliciously indict an innocent person. In the 1611 case known as Poulterer's Case, the court changed this definition. The court decided that the agreement itself was the crime. This allowed the law to cover agreements to commit any type of crime.

In England and Wales, the law underwent major changes due to the Law Commission. In 1976, the Law Commission issued Report No. 76 on Conspiracy and Criminal Law Reform. They believed the old common law rules were too vague. They wanted to ensure the principle of certainty in the legal system. This led to the Criminal Law Act 1977. This act created a statutory offence and abolished most old common law versions. It aimed to ensure that a conspiracy only involved agreeing to a conduct that was itself a crime.

Two specific types of common law conspiracy were preserved by the 1977 Act. The first is conspiracy to defraud, which involves a plan to trick others. The second involves conspiring to corrupt public morals or outrage public decency. These cases often involve complex questions about societal standards. For example, the 1962 case of Shaw v DPP involved a booklet listing names and addresses. The House of Lords found the defendant guilty of conspiracy to corrupt public morals.

Another notable case is Knuller (Publishing, Printing and Promotions) Ltd v DPP in 1973. This case involved a magazine that published advertisements for certain practices. The appellants were convicted of conspiring to corrupt public morals and outrage public decency. However, the appeal for the second charge was allowed. The court found there had been a mistake regarding the meaning of "decency." These examples show how courts must carefully define terms to apply the law fairly.

Conspiracy law connects to many broader ideas in society and government. It touches on the balance between private conduct and state regulation. For instance, the Wolfenden report of 1957 sparked debates on this topic. Legal scholars like Lord Devlin and H. L. A. Hart argued different sides. Devlin believed the state should protect societal morals. Hart argued the state should not regulate private conduct. These debates help shape how modern laws are written and applied today.

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